Comparison

RezClock vs Internal Medicine On Call

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

RezClock

Automates medical resident duty hour tracking using location services to log arrival and departure times at clinical sites. Hours can be uploaded to other systems for generating ACGME required reports. Offers a free trial period before subscription.

Highlights
  • Automated time tracking
  • Location-based geofencing
  • Duty hours reporting
  • Data upload to MedProSuite
  • Free trial period
Features
Read full description

Medical Resident Duty Hours management app. RezClock automates time tracking for medical residents. RezClock uses phone's location services to determine when the resident arrives and leaves the clinical site. A clinical site is defined by creating a geofence around each work site user visits. The hours captured can then be uploaded to MedProSuite.com or another Duty Hours Tracking product to generate ACGME required Duty Hours Reports. Please note: Continued use of GPS running in the background can dramatically decrease battery life. RezClock is available by subscription(first 15 days are free). You may continue by: - Subscribing to RezClock Monthly for $0.99/month - Payment will be charged to iTunes Account at confirmation of purchase - Subscription automatically renews unless auto-renew is turned off at least 24-hours before the end of the current period - Account will be charged for renewal within 24-hours prior to the end of the current period, and identify the cost of the renewal - Subscriptions may be managed by the user and auto-renewal may be turned off by going to the user's Account Settings after purchase - Any unused portion of a free trial period, if offered, will be forfeited when the user purchases a subscription to that publication, where applicable Terms & Conditions - http://rezclock.com/terms-conditions.html Privacy - http://rezclock.com/privacy.html

About

Internal Medicine On Call

This medical reference app provides concise guidance on over 60 common internal medicine on-call problems. It includes interactive flowcharts for decision support and essential information on laboratory tests and procedures. An in-app purchase unlocks all content.

Highlights
  • Covers over 60 common on-call problems
  • Interactive flowcharts for decision support
  • Interpretation of laboratory tests and procedures
  • Concise evaluation and treatment plans
  • Quick reference for on-call therapeutics
  • Offline access to content
Features
Read full description

"Try before you buy" - Download the FREE App, which includes sample content. In-App purchase required to unlock all content. Based on 4th print ed. Essential guide to interpretation of over 60 laboratory tests and bedside procedures. Interactive flowcharts. A concise, portable reference that focuses on the evaluation and treatment of over 60 of the most common internal medicine on-call problems. Each on call section includes a presenting problem, immediate questions, differential diagnosis, laboratory and other diagnostic data, and treatment plan. Key Features Comprehensive overview of the initial evaluation and treatment of more than 60 of the most common problems seen daily on the wards Thoroughly updated on-call problems reflect the latest diagnostic tests and treatment options Essential guide to interpretation of laboratory tests and bedside procedures New sections include: dizziness, overdoses, and pruritis On call therapeutics section offers a quick reference to commonly used medications and includes both generic drugs as well as vitamins, minerals, and natural products New interactive flowcharts: Now, complex algorithms and protocols are transformed from static images into dynamic step-by-step decision support tools. See how this innovative feature can quickly and easily walk you through even the most intricate decision models. With Skyscape's patented smARTlink™ technology, Internal Medicine On Call can easily cross-index with other clinical and drug prescription products from Skyscape to provide a powerful and integrated source of clinical information that you can carry with you wherever you go! No internet connection is required to access the content after the initial download. Find information quickly using powerful SmartSearch technology. Search part of term for those hard to spell medical terms. Content licensed from printed ISBN 10: 0071439021 Content licensed from printed ISBN 13: 978-0071439022 SUBSCRIPTION : Please choose an auto renewable subscription plan to receive content access & continuous updates. Your subscription automatically renews as per your plan, so you always have the latest content. Yearly auto-renewing payments - $39.99 Payment will be charged to your iTunes Account at confirmation of purchase. Subscription automatically renews unless auto-renew is turned off at least 24-hours before the end of the current period. Subscription may be managed by the user & auto-renewal can be disabled at any time by going to your device “Settings” and tapping “iTunes & App Store”. Any unused portion of a free trial period will be forfeited when you purchase a subscription, where applicable. If you have any questions or comments, email us any time: customersupport@skyscape.com or call 508-299-3000 Privacy Policy - https://www.skyscape.com/terms-of-service/privacypolicy.aspx Terms and Conditions - https://www.skyscape.com/terms-of-service/licenseagreement.aspx Editor(s): Steven A. Haist MD, MS, FACP, John B. Robbins MD Publisher: McGraw-Hill

Screenshots

RezClock4 screens
Internal Medicine On Call4 screens

Verdict

The call

The clearest difference is rating: Internal Medicine On Call at 4.2 against RezClock's 2.3. Internal Medicine On Call also leads on monetization model (free with in-app purchases vs subscription) and update cadence (every 8 months vs every 35 months). RezClock's advantage is ads (none vs shown) and iOS requirement (10.0 vs 13.0). On price, ratings volume and in-app purchases there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. RezClock sells 1 in-app purchase, starting at $0.99 per month and Internal Medicine On Call sells 6 in-app purchases, starting at $29.99 per year. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Internal Medicine On Call holds the better App Store score, 4.2 against 2.3. Both are backed by a comparable volume of ratings — 3 and 5 respectively.

UpkeepUpdate frequency

RezClock ships an update every 35 months, Internal Medicine On Call every 8 months. The most recent releases landed on November 1, 2026 and November 2, 2026 respectively.

Scorecard6 real differences · 4 level
RezClock versus Internal Medicine On Call: the parameters behind the verdict, then further details
ParameterRezClockInternal Medicine On Call
PriceFreeFree
Rating2.3 (3 ratings)4.2 (5 ratings) — better
Positive reviews0.0% of reviews—
Number of ratings35 — better
Update frequencyEvery 35 monthsEvery 8 months — better
AdsNo — betterYes
In-app purchasesYesYes
MonetizationSubscriptionFree with in-app purchases — better
DevicesiPhone, iPodiPhone, iPad, iPod, Mac — better
Requires iOS10.0 — better13.0
Further details — not scored
Size24 MB46 MB
Age rating4+17+
DeveloperMitra U.S. Computer Solutions, IncSkyscape Medpresso Inc

Customer experience

RezClock

All ratings3 ratings
Positive33.3%
Neutral0.0%
Negative66.7%
Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

Internal Medicine On Call

All ratings5 ratings
Positive80.0%
Neutral0.0%
Negative20.0%

In-app purchases

1 purchases

RezClock

Subscriptions1
  • RezClock Monthly - $0.99/month$0.991 Month
6 purchases

Internal Medicine On Call

Subscriptions5
  • 25% Off-Limited Period Offer$29.991 Year
  • 20% Off-Limited Period Offer$31.991 Year
  • 15% Off-Limited Time Offer$33.991 Year
Show 2 more
  • #1 On-call Guide IM Problems$34.991 Year
  • Internal Med On Call 1/Y Sub$39.991 Year
One-time1
  • Internal Medicine On Call$39.99

Questions

Is RezClock free?
RezClock is free to download, with in-app purchases available.
Is Internal Medicine On Call free?
Internal Medicine On Call is free to download, with in-app purchases available.
Which has better reviews, RezClock or Internal Medicine On Call?
Internal Medicine On Call is rated higher. RezClock averages 2.3 out of 5 from 3 ratings, while Internal Medicine On Call averages 4.2 from 5 ratings.
Do RezClock or Internal Medicine On Call have ads?
Internal Medicine On Call shows ads; RezClock does not.
Which is updated more often, RezClock or Internal Medicine On Call?
RezClock ships an update every 35 months, and Internal Medicine On Call every 8 months. Most recently, RezClock was updated on November 1, 2026 and Internal Medicine On Call on November 2, 2026.

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